package org.HU.train.business.service.order;

import jakarta.annotation.Resource;
import org.HU.train.business.domain.daily.DailyTrainSeat;
import org.HU.train.business.domain.daily.DailyTrainTicket;
import org.HU.train.business.domain.order.ConfirmOrder;
import org.HU.train.business.enums.ConfirmOrderStatusEnum;
import org.HU.train.business.feign.MemberFeign;
import org.HU.train.business.mapper.cust.DailyTrainTicketMapperCust;
import org.HU.train.business.mapper.daily.DailyTrainSeatMapper;
import org.HU.train.business.mapper.order.ConfirmOrderMapper;
import org.HU.train.business.req.order.ConfirmOrderTicketReq;
import org.HU.train.common.request.MemberTicketReq;
import org.HU.train.common.response.CommonResp;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;

/**
 * @Author ZUZ
 * @Description: 在选完座之后批量保存
 *                   // 座位表修改售卖情况sell；
 *                  // 余票详情表修改余票；
 *                  // 为会员增加购票记录
 *                  // 更新确认订单为成功
 * @Date 2024-12-22 17:16
 * @ClassName: AfterConfirmOrderService
 */
@Service
public class AfterConfirmOrderService {
    private static final Logger LOG = LoggerFactory.getLogger(AfterConfirmOrderService.class);
    @Resource
    private DailyTrainSeatMapper dailyTrainSeatMapper;
    @Resource
    private ConfirmOrderMapper confirmOrderMapper;
    @Resource
    private DailyTrainTicketMapperCust dailyTrainTicketMapperCust;
    @Resource
    private MemberFeign memberFeign;

    /**
     * 选中座位后事务处理：
         *  座位表修改售卖情况sell；
         *  余票详情表修改余票；
         *  为会员增加购票记录
         *  更新确认订单为成功
     */
    @Transactional//这个注解只对本模块的事务有效，对于远端的member模块是无效的，所以引入分布式事务
    //@GlobalTransactional//开启seata分布式事务的注解
    public void afterDoConfirm(DailyTrainTicket dailyTrainTicket, List<DailyTrainSeat> finalSeatList, List<ConfirmOrderTicketReq> tickets, ConfirmOrder confirmOrder) throws Exception {

        //LOG.info("seata全局事务ID: {}", RootContext.getXID());

        for (int j = 0; j < finalSeatList.size(); j++) {
            DailyTrainSeat dailyTrainSeat = finalSeatList.get(j);
            DailyTrainSeat seatForUpdate = new DailyTrainSeat();
            seatForUpdate.setId(dailyTrainSeat.getId());
            seatForUpdate.setSell(dailyTrainSeat.getSell());
            seatForUpdate.setUpdateTime(new Date());
            dailyTrainSeatMapper.updateByPrimaryKeySelective(seatForUpdate);


            Integer startIndex = dailyTrainTicket.getStartIndex();
            Integer endIndex = dailyTrainTicket.getEndIndex();
            char[] chars = seatForUpdate.getSell().toCharArray();
            Integer maxStartIndex = endIndex - 1;
            Integer minEndIndex = startIndex + 1;
            Integer minStartIndex = 0;
            for (int i = startIndex - 1; i >= 0; i--) {
                char aChar = chars[i];
                if (aChar == '1') {
                    minStartIndex = i + 1;
                    break;
                }
            }
            LOG.info("影响出发站区间：" + minStartIndex + "-" + maxStartIndex);

            Integer maxEndIndex = seatForUpdate.getSell().length();
            for (int i = endIndex; i < seatForUpdate.getSell().length(); i++) {
                char aChar = chars[i];
                if (aChar == '1') {
                    maxEndIndex = i;
                    break;
                }
            }
            LOG.info("影响到达站区间：" + minEndIndex + "-" + maxEndIndex);

            dailyTrainTicketMapperCust.updateCountBySell(
                    dailyTrainSeat.getDate(),
                    dailyTrainSeat.getTrainCode(),
                    dailyTrainSeat.getSeatType(),
                    minStartIndex,
                    maxStartIndex,
                    minEndIndex,
                    maxEndIndex);


            // 调用会员服务接口，为会员增加一张车票
            MemberTicketReq memberTicketReq = new MemberTicketReq();
            memberTicketReq.setMemberId(confirmOrder.getMemberId());
            memberTicketReq.setPassengerId(tickets.get(j).getPassengerId());
            memberTicketReq.setPassengerName(tickets.get(j).getPassengerName());
            memberTicketReq.setTrainDate(dailyTrainTicket.getDate());
            memberTicketReq.setTrainCode(dailyTrainTicket.getTrainCode());
            memberTicketReq.setCarriageIndex(dailyTrainSeat.getCarriageIndex());
            memberTicketReq.setSeatRow(dailyTrainSeat.getRow());
            memberTicketReq.setSeatCol(dailyTrainSeat.getCol());
            memberTicketReq.setStartStation(dailyTrainTicket.getStart());
            memberTicketReq.setStartTime(dailyTrainTicket.getStartTime());
            memberTicketReq.setEndStation(dailyTrainTicket.getEnd());
            memberTicketReq.setEndTime(dailyTrainTicket.getEndTime());
            memberTicketReq.setSeatType(dailyTrainSeat.getSeatType());
            CommonResp<Object> commonResp = memberFeign.save(memberTicketReq);
            LOG.info("调用member接口，返回：{}", commonResp);



            // 更新订单状态为成功
            ConfirmOrder confirmOrderForUpdate = new ConfirmOrder();
            confirmOrderForUpdate.setId(confirmOrder.getId());
            confirmOrderForUpdate.setUpdateTime(new Date());
            confirmOrderForUpdate.setStatus(ConfirmOrderStatusEnum.SUCCESS.getCode());
            confirmOrderMapper.updateByPrimaryKeySelective(confirmOrderForUpdate);

        }
    }
}
